Fireplace-heater.



THOMAS BURNS BAYLESS, OF LEXINGTON, KENTUCKY.

UNITED STATES f Patented May 1e, 190e. PATENT OFFICE.

Fll`1EPLACE-HEATER.

SPECIFICATION forming part of. Letters Patent N 0. 728,355, dated May19, 1903;

Application led October 30,

To a/ZZ whom t may 00h/cern.: f

Be it known that L'THOMAS BURNS Bev- LESS, a citizen ofthe UnitedStates, residing at Lexington, in the county of Fayette and State ofKentucky, have invented certain new and useful Improvements inFireplace-Heat-` ers; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilledV in the art to whichit appertains to make and; use thesame.

This invention relates to air-heating de: vices of that class which aremounted in fireplaces or chimneys and through which fresh air isconducted past or in close proximity tothe fire or hot part ofV theIireplace and. then discharged in heated condition into the room,whereby heatis' obtained n ot only by direct radiation from the burningfuel, Ibutalso by discharge of such heated air, as wellY as by radiationand reilection from the outer walls of the air-heater.

The objectV of the present invention isto provide an improvedandexceedingly simple and efficient device of this character which willpermit utilization of the heat generated in the fireplace in a mostthorough and economical manner.` t

The invention will first be described withA reference to theaccompanying drawings, which form a part ofthis'speciiication, and willthen be pointed out more particularly in the annexed claim. Y

In said drawings, Figure l isa front view of a fireplace havingmyimproved heater mounted therein. Fig.,2vis a perspective View of theheater detached. Fig. Sis a central vertical cross-section through thefireplace looking from the left of Fig. 1. Fig. 4 is a central verticalcross-section through the fireplace looking from the right of Fig. l.

The letter A denotes a-replace of ordinary construction,.and BandCdesignate the front and rear chimney-Walls, While D indicates a gratefor supportof fuel, E the ash-pit beneath the same, and F a rearfire-brick or lining for protecting the heater from the fire. ln placeof a grate suitable andirons or fire-dogs may be used where wood logsare to be burned, or suitable gas or oil fuel burners may be employed. vv l Myimproved air-'heater consists in the main serian Nt. 129,383.(Numdam of an upright wide but thin or flattishcasing G, fitting,preferably, in the back of the fireplace a'nd having a suitable openingor pipe at the bottom for-admission of fresh pure air y andhavingasuitable opening or pipe at the top for d ischargeof@ hotair into theroom or V connected with a'Y tine or Iluesfor conducting the heated airto hot-air registers or radiators in otherV parts of the building, theheater thus acting on the principle of the ordinary furnace. In thepresent illustration of the invention Van air-inlet pipe H! depends fromthe bottom of the casinginto afresh-air chamber J beneath the fireplace,and a flue K extends from' the upper partof the casing through the sideof the chimney and into the room, into which hot air is th-usdischarged, while a due L is also shown for conducting'hot air to anVupper room. This casing G may rest in the door of the lireplace or maybe supported with its bottom above the floor, and it may be fastened tothe chimney-wall or otherwise mounted in place.. There'brick F islocated between the grate andthe lower front part of the casing toprevent the yIire from burning or injuring` the same. The rear face orwall of the casing is usuallytlator plane, as shown, so as to fitclosely against `the rear chimney-v wall, while the front face or wallof lthe casing is formed with a forward-projecting part g, preferablyimmediately above the fire-brick, whereby the thin or shallowspacebetween the front and rear walls of the casing is increased above thegrate, While a horizontal shoulder g is also provided, which rests uponthe upper edge of the lire-brick, by which the casing may thus berigidly supported in place. The casing has alsoa forwardly-inclined topportion g?, preferably of thesame thickness or cross-dimension as thepart g. This not only conforms to the ordinary construction of the rearchimney-wall at top of the fireplace,1but such forwardly-inclinedpart ofthe casing overhangs the fire, and is thusy acted on by the ascendingheat, so that'theairin the` casing is continually heated as it risesuntil it reaches its dischargepipe oru'e. The iiue g.

K, as shown, extends laterally from one end of this inclined part gz'ofthecasing andupwardly through the side of the chimney', so .thatthe hotair will readily ascend there- Ico through. The fresh air admittedthrough the l lower inlet-pipe passes up through the casing in a widethin sheet, which is thus heated easily to very high degree. In thelower part of the casing the airis heated at the outset by reason of itsproximity to the re, and is thus expanded as it ascends into the upperthicker or increased part of the internal chamberof the casing, and asit passes up through said upper part ot the casing and forwardlyinclinedor overhanging part still in a comparatively thin sheet it takes up moreheat from the rising flames and heat from the burning fuel, and this isexpanded more and more, so that it is forced up through the lues anddischarged.

It will be observed that the airinlet pipe H is located at the left-handside ofthe heater or casing, while the air-exit iue is located at theopposite or right-hand side. By this arrangementthe air is preventedfrom rising quickly in a vertical column and is compelled to spread outand pass in a sheet across the whole width of the casing, thus taking upa great amount ot' heat.

As is Well known, in the ordinary roplace about two-thirds ofthe heatgoes up the chimney and is wasted. By means of myimproved heater nearlyhalf of this Waste heat may be utilized.

The heater maybe made of cast-iron, preferably in an integral or unitarypart, and the fines made of sheet metal, or both may be constructed ofany suitable metal and in anyr suitable manner. Two small knobs g3 are Afireplace-heater consisting of a wide thin casing adapted to fit in theback of the fireplace, and through which air ascends in a thin sheet,said casing comprising in a unitary structure a vertical member having afiat back and a front projecting abruptly forward at its upper part,thus providing a horizontal shoulder to rest ou the {ire-brick placedagainst the lower front and enlarging the internal space transverselyabove the re-brick, and a forwardly-inclined or overhanging memberextending from the top of said Vertical member and of substantially thesame thickness as the upper part of the latter, `together with a lowerpipe or opening for admission of fresh air and an upper flue or openingfor discharge of hot air leading from said forwardly-inclined member,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS BURNS BAYLESS.

Witnesses:

JOHN L. BURNS, R. RICHARDSON.

